Physical Science

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Across
  1. 3. A chemical compound composed of exactly two different elements.
  2. 8. Name we use for the unequal distribution of electric charge.
  3. 9. Formed when atoms share electrons.
  4. 12. Rule that states Atoms tend to gain, lose, or share electrons.
  5. 15. What is a negatively charged ion?
  6. 16. An ionic substance represents a ______.
  7. 17. Transfer of electrons from a metal to a non-metal that creates a oppositely charged ion.
  8. 18. Interaction shared between atoms unevenly sharing electrons.
  9. 19. Simpler way to model a covalent bond than the Bohr model.
  10. 20. When are atoms most stable?
Down
  1. 1. Atoms sometimes prefer to be...
  2. 2. Why do some atoms prefer to be bonded?
  3. 4. Electromagnetic attraction that forms between atoms when they share or transfer valence electrons.
  4. 5. Group of contently bonded atoms that together have gained or lost electrons.
  5. 6. Molecules made of two atoms, weather the same element or not.
  6. 7. How many naturally occurring elements are formed for an array of compounds.
  7. 10. Attraction between metal atoms and the sea of their shared electrons.
  8. 11. An element's ___________ shows the electric charge gained or lost by that element when it forms a compound.
  9. 13. How many valence electrons must be in an atom to make it stable?
  10. 14. Interaction shared between atoms evenly sharing electrons.